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  13  <h1>
  14      <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  15
  16  </h1>
  17
  18 </div>
  19
  20
  21
  22     <div class="entry">
  23       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Teaching_vmdebootstrap_to_create_Raspberry_Pi_SD_card_images.html">Teaching vmdebootstrap to create Raspberry Pi SD card images</a></div>
  24       <div class="date">27th October 2013</div>
  25       <div class="body"><p>The
  26 <a href="http://packages.qa.debian.org/v/vmdebootstrap.html">vmdebootstrap</a>
  27 program is a a very nice system to create virtual machine images.  It
  28 create a image file, add a partition table, mount it and run
  29 debootstrap in the mounted directory to create a Debian system on a
  30 stick.  Yesterday, I decided to try to teach it how to make images for
  31 <a href="https://wiki.debian.org/RaspberryPi">Raspberry Pi</a>, as part
  32 of a plan to simplify the build system for
  33 <a href="https://wiki.debian.org/FreedomBox">the FreedomBox
  34 project</a>.  The FreedomBox project already uses vmdebootstrap for
  35 the virtualbox images, but its current build system made multistrap
  36 based system for Dreamplug images, and it is lacking support for
  37 Raspberry Pi.</p>
  38
  39 <p>Armed with the knowledge on how to build "foreign" (aka non-native
  40 architecture) chroots for Raspberry Pi, I dived into the vmdebootstrap
  41 code and adjusted it to be able to build armel images on my amd64
  42 Debian laptop.  I ended up giving vmdebootstrap five new options,
  43 allowing me to replicate the image creation process I use to make
  44 <a href=http://people.skolelinux.org/pere/blog/A_Raspberry_Pi_based_batman_adv_Mesh_network_node.html"">Debian
  45 Jessie based mesh node images for the Raspberry Pi</a>.  First, the
  46 <tt>--foreign /path/to/binfm_handler</tt> option tell vmdebootstrap to
  47 call debootstrap with --foreign and to copy the handler into the
  48 generated chroot before running the second stage.  This allow
  49 vmdebootstrap to create armel images on an amd64 host.  Next I added
  50 two new options <tt>--bootsize size</tt> and <tt>--boottype
  51 fstype</tt> to teach it to create a separate /boot/ partition with the
  52 given file system type, allowing me to create an image with a vfat
  53 partition for the /boot/ stuff.  I also added a <tt>--variant
  54 variant</tt> option to allow me to create smaller images without the
  55 Debian base system packages installed.  Finally, I added an option
  56 <tt>--no-extlinux</tt> to tell vmdebootstrap to not install extlinux
  57 as a boot loader.  It is not needed on the Raspberry Pi and probably
  58 most other non-x86 architectures.  The changes were accepted by the
  59 upstream author of vmdebootstrap yesterday and today, and is now
  60 available from
  61 <a href="http://git.liw.fi/cgi-bin/cgit/cgit.cgi/vmdebootstrap/">the
  62 upstream project page</a>.</p>
  63
  64 <p>To use it to build a Raspberry Pi image using Debian Jessie, first
  65 create a small script (the customize script) to add the non-free
  66 binary blob needed to boot the Raspberry Pi and the APT source
  67 list:</p>
  68
  69 <p><pre>
  70 #!/bin/sh
  71 set -e # Exit on first error
  72 rootdir="$1"
  73 cd "$rootdir"
  74 cat &lt;&lt;EOF > etc/apt/sources.list
  75 deb http://http.debian.net/debian/ jessie main contrib non-free
  76 EOF
  77 # Install non-free binary blob needed to boot Raspberry Pi.  This
  78 # install a kernel somewhere too.
  79 wget https://raw.github.com/Hexxeh/rpi-update/master/rpi-update \
  80     -O $rootdir/usr/bin/rpi-update
  81 chmod a+x $rootdir/usr/bin/rpi-update
  82 mkdir -p $rootdir/lib/modules
  83 touch $rootdir/boot/start.elf
  84 chroot $rootdir rpi-update
  85 </pre></p>
  86
  87 <p>Next, fetch the latest vmdebootstrap script and call it like this
  88 to build the image:</p>
  89
  90 <pre>
  91 sudo ./vmdebootstrap \
  92     --variant minbase \
  93     --arch armel \
  94     --distribution jessie \
  95     --mirror http://http.debian.net/debian \
  96     --image test.img \
  97     --size 600M \
  98     --bootsize 64M \
  99     --boottype vfat \
 100     --log-level debug \
 101     --verbose \
 102     --no-kernel \
 103     --no-extlinux \
 104     --root-password raspberry \
 105     --hostname raspberrypi \
 106     --foreign /usr/bin/qemu-arm-static \
 107     --customize `pwd`/customize \
 108     --package netbase \
 109     --package git-core \
 110     --package binutils \
 111     --package ca-certificates \
 112     --package wget \
 113     --package kmod
 114 </pre></p>
 115
 116 <p>The list of packages being installed are the ones needed by
 117 rpi-update to make the image bootable on the Raspberry Pi, with the
 118 exception of netbase, which is needed by debootstrap to find
 119 /etc/hosts with the minbase variant.  I really wish there was a way to
 120 set up an Raspberry Pi using only packages in the Debian archive, but
 121 that is not possible as far as I know, because it boots from the GPU
 122 using a non-free binary blob.</p>
 123
 124 <p>The build host need debootstrap, kpartx and qemu-user-static and
 125 probably a few others installed.  I have not checked the complete
 126 build dependency list.</p>
 127
 128 <p>The resulting image will not use the hardware floating point unit
 129 on the Raspberry PI, because the armel architecture in Debian is not
 130 optimized for that use.  So the images created will be a bit slower
 131 than <a href="http://www.raspbian.org/">Raspbian</a> based images.</p>
 132 </div>
 133       <div class="tags">
 134
 135
 136         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox</a>, <a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network</a>.
 137
 138
 139       </div>
 140     </div>
 141     <div class="padding"></div>
 142
 143     <div class="entry">
 144       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Det_er_jo_makta_som_er_mest_s_rbar_ved_massiv_overv_kning_av_Internett.html">Det er jo makta som er mest sårbar ved massiv overvåkning av Internett</a></div>
 145       <div class="date">26th October 2013</div>
 146       <div class="body"><p>De siste måneders eksponering av
 147 <a href="http://www.aftenposten.no/nyheter/uriks/Her-er-Edvard-Snowdens-mest-omtalte-avsloringer-7351734.html">den
 148 totale overvåkningen som foregår i den vestlige verden dokumenterer
 149 hvor sårbare vi er</a>.  Men det slår meg at de som er mest sårbare
 150 for dette, myndighetspersoner på alle nivåer, neppe har innsett at de
 151 selv er de mest interessante personene å lage profiler på, for å kunne
 152 påvirke dem.</p>
 153
 154 <p>For å ta et lite eksempel: Stortingets nettsted,
 155 <a href="http://www.stortinget.no/">www.stortinget.no</a> (og
 156 forsåvidt også
 157 <a href="http://data.stortinget.no/">data.stortinget.no</a>),
 158 inneholder informasjon om det som foregår på Stortinget, og jeg antar
 159 de største brukerne av informasjonen der er representanter og
 160 rådgivere på Stortinget.  Intet overraskende med det.  Det som derimot
 161 er mer skjult er at Stortingets nettsted bruker
 162 <a href="http://en.wikipedia.org/wiki/Google_Analytics">Google
 163 Analytics</a>, hvilket gjør at enhver som besøker nettsidene der også
 164 rapporterer om besøket via Internett-linjer som passerer Sverige,
 165 England og videre til USA.  Det betyr at informasjon om ethvert besøk
 166 på stortingets nettsider kan snappes opp av svensk, britisk og USAs
 167 etterretningsvesen.  De kan dermed holde et øye med hvilke
 168 Stortingssaker stortingsrepresentantene synes er interessante å sjekke
 169 ut, og hvilke sider rådgivere og andre på stortinget synes er
 170 interessant å besøke, når de gjør det og hvilke andre representanter
 171 som sjekker de samme sidene omtrent samtidig.  Stortingets bruk av
 172 Google Analytics gjør det dermed enkelt for utenlands etteretning å
 173 spore representantenes aktivitet og interesse.  Hvis noen av
 174 representantene bruker Google Mail eller noen andre tjenestene som
 175 krever innlogging, så vil det være enda enklere å finne ut nøyaktig
 176 hvilke personer som bruker hvilke nettlesere og dermed knytte
 177 informasjonen opp til enkeltpersoner på Stortinget.</p>
 178
 179 <p>Og jo flere nettsteder som bruker Google Analytics, jo bedre
 180 oversikt over stortingsrepresentantenes lesevaner og interesse blir
 181 tilgjengelig for svensk, britisk og USAs etterretning.  Hva de kan
 182 bruke den informasjonen til overlater jeg til leseren å undres
 183 over.</p>
 184 </div>
 185       <div class="tags">
 186
 187
 188         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk</a>, <a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern</a>, <a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet</a>, <a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget</a>, <a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance</a>.
 189
 190
 191       </div>
 192     </div>
 193     <div class="padding"></div>
 194
 195     <div class="entry">
 196       <div class="title"><a href="http://people.skolelinux.org/pere/blog/A_Raspberry_Pi_based_batman_adv_Mesh_network_node.html">A Raspberry Pi based batman-adv Mesh network node</a></div>
 197       <div class="date">21st October 2013</div>
 198       <div class="body"><p>The last few days I have been experimenting with
 199 <a href="http://www.open-mesh.org/projects/batman-adv/wiki">the
 200 batman-adv mesh technology</a>.  I want to gain some experience to see
 201 if it will fit <a href="https://wiki.debian.org/FreedomBox">the
 202 Freedombox project</a>, and together with my neighbors try to build a
 203 mesh network around the park where I live.  Batman-adv is a layer 2
 204 mesh system ("ethernet" in other words), where the mesh network appear
 205 as if all the mesh clients are connected to the same switch.</p>
 206
 207 <p>My hardware of choice was the Linksys WRT54GL routers I had lying
 208 around, but I've been unable to get them working with batman-adv.  So
 209 instead, I started playing with a
 210 <a href="http://www.raspberrypi.org/">Raspberry Pi</a>, and tried to
 211 get it working as a mesh node.  My idea is to use it to create a mesh
 212 node which function as a switch port, where everything connected to
 213 the Raspberry Pi ethernet plug is connected (bridged) to the mesh
 214 network.  This allow me to hook a wifi base station like the Linksys
 215 WRT54GL to the mesh by plugging it into a Raspberry Pi, and allow
 216 non-mesh clients to hook up to the mesh.  This in turn is useful for
 217 Android phones using <a href="http://servalproject.org/">the Serval
 218 Project</a> voip client, allowing every one around the playground to
 219 phone and message each other for free.  The reason is that Android
 220 phones do not see ad-hoc wifi networks (they are filtered away from
 221 the GUI view), and can not join the mesh without being rooted.  But if
 222 they are connected using a normal wifi base station, they can talk to
 223 every client on the local network.</p>
 224
 225 <p>To get this working, I've created a debian package
 226 <a href="https://github.com/petterreinholdtsen/meshfx-node">meshfx-node</a>
 227 and a script
 228 <a href="https://github.com/petterreinholdtsen/meshfx-node/blob/master/build-rpi-mesh-node">build-rpi-mesh-node</a>
 229 to create the Raspberry Pi boot image.  I'm using Debian Jessie (and
 230 not Raspbian), to get more control over the packages available.
 231 Unfortunately a huge binary blob need to be inserted into the boot
 232 image to get it booting, but I'll ignore that for now.  Also, as
 233 Debian lack support for the CPU features available in the Raspberry
 234 Pi, the system do not use the hardware floating point unit.  I hope
 235 the routing performance isn't affected by the lack of hardware FPU
 236 support.</p>
 237
 238 <p>To create an image, run the following with a sudo enabled user
 239 after inserting the target SD card into the build machine:</p>
 240
 241 <p><pre>
 242 % wget -O build-rpi-mesh-node \
 243     https://raw.github.com/petterreinholdtsen/meshfx-node/master/build-rpi-mesh-node
 244 % sudo bash -x ./build-rpi-mesh-node > build.log 2>&1
 245 % dd if=/root/rpi/rpi_basic_jessie_$(date +%Y%m%d).img of=/dev/mmcblk0 bs=1M
 246 %
 247 </pre></p>
 248
 249 <p>Booting with the resulting SD card on a Raspberry PI with a USB
 250 wifi card inserted should give you a mesh node.  At least it does for
 251 me with a the wifi card I am using. The default mesh settings are the
 252 ones used by the Oslo mesh project at Hackeriet, as I mentioned in
 253 <a href="http://people.skolelinux.org/pere/blog/Oslo_community_mesh_network___with_NUUG_and_Hackeriet_at_Hausmania.html">an
 254 earlier blog post about this mesh testing</a>.</p>
 255
 256 <p>The mesh node was not horribly expensive either.  I bought
 257 everything over the counter in shops nearby.  If I had ordered online
 258 from the lowest bidder, the price should be significantly lower:</p>
 259
 260 <p><table>
 261
 262 <tr><th>Supplier</th><th>Model</th><th>NOK</th></tr>
 263 <tr><td>Teknikkmagasinet</td><td>Raspberry Pi model B</td><td>349.90</td></tr>
 264 <tr><td>Teknikkmagasinet</td><td>Raspberry Pi type B case</td><td>99.90</td></tr>
 265 <tr><td>Lefdal</td><td>Jensen Air:Link 25150</td><td>295.-</td></tr>
 266 <tr><td>Clas Ohlson</td><td>Kingston 16 GB SD card</td><td>199.-</td></tr>
 267 <tr><td>Total cost</td><td></td><td>943.80</td></tr>
 268
 269 </table></p>
 270
 271 <p>Now my mesh network at home consist of one laptop in the basement
 272 connected to my production network, one Raspberry Pi node on the 1th
 273 floor that can be seen by my neighbor across the park, and one
 274 play-node I use to develop the image building script.  And some times
 275 I hook up my work horse laptop to the mesh to test it.  I look forward
 276 to figuring out what kind of latency the batman-adv setup will give,
 277 and how much packet loss we will experience around the park. :)</p>
 278 </div>
 279       <div class="tags">
 280
 281
 282         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox</a>, <a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug</a>.
 283
 284
 285       </div>
 286     </div>
 287     <div class="padding"></div>
 288
 289     <div class="entry">
 290       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Perl_library_to_control_the_Spykee_robot_moved_to_github.html">Perl library to control the Spykee robot moved to github</a></div>
 291       <div class="date">19th October 2013</div>
 292       <div class="body"><p>Back in 2010, I created a Perl library to talk to
 293 <a href="http://en.wikipedia.org/wiki/Spykee">the Spykee robot</a>
 294 (with two belts, wifi, USB and Linux) and made it available from my
 295 web page.  Today I concluded that it should move to a site that is
 296 easier to use to cooperate with others, and moved it to github.  If
 297 you got a Spykee robot, you might want to check out
 298 <a href="https://github.com/petterreinholdtsen/libspykee-perl">the
 299 libspykee-perl github repository</a>.</p>
 300 </div>
 301       <div class="tags">
 302
 303
 304         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug</a>, <a href="http://people.skolelinux.org/pere/blog/tags/robot">robot</a>.
 305
 306
 307       </div>
 308     </div>
 309     <div class="padding"></div>
 310
 311     <div class="entry">
 312       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Good_causes__Debian_Outreach_Program_for_Women__EFF_documenting_the_spying_and_Open_access_in_Norway.html">Good causes: Debian Outreach Program for Women, EFF documenting the spying and Open access in Norway</a></div>
 313       <div class="date">15th October 2013</div>
 314       <div class="body"><p>The last few days I came across a few good causes that should get
 315 wider attention.  I recommend signing and donating to each one of
 316 these. :)</p>
 317
 318 <p>Via <a href="http://www.debian.org/News/weekly/2013/18/">Debian
 319 Project News for 2013-10-14</a> I came across the Outreach Program for
 320 Women program which is a Google Summer of Code like initiative to get
 321 more women involved in free software.  One debian sponsor has offered
 322 to match <a href="http://debian.ch/opw2013">any donation done to Debian
 323 earmarked</a> for this initiative.  I donated a few minutes ago, and
 324 hope you will to. :)</p>
 325
 326 <p>And the Electronic Frontier Foundation just announced plans to
 327 create <a href="https://supporters.eff.org/donate/nsa-videos">video
 328 documentaries about the excessive spying</a> on every Internet user that
 329 take place these days, and their need to fund the work.  I've already
 330 donated.  Are you next?</p>
 331
 332 <p>For my Norwegian audience, the organisation Studentenes og
 333 Akademikernes Internasjonale Hjelpefond is collecting signatures for a
 334 statement under the heading
 335 <a href="http://saih.no/Bloggers_United/">Bloggers United for Open
 336 Access</a> for those of us asking for more focus on open access in the
 337 Norwegian government.  So far 499 signatures.  I hope you will sign it
 338 too.</p>
 339 </div>
 340       <div class="tags">
 341
 342
 343         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</a>, <a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance</a>.
 344
 345
 346       </div>
 347     </div>
 348     <div class="padding"></div>
 349
 350     <div class="entry">
 351       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Oslo_community_mesh_network___with_NUUG_and_Hackeriet_at_Hausmania.html">Oslo community mesh network - with NUUG and Hackeriet at Hausmania</a></div>
 352       <div class="date">11th October 2013</div>
 353       <div class="body"><p>Wireless mesh networks are self organising and self healing
 354 networks that can be used to connect computers across small and large
 355 areas, depending on the radio technology used.  Normal wifi equipment
 356 can be used to create home made radio networks, and there are several
 357 successful examples like
 358 <a href="http://www.freifunk.net/">Freifunk</a> and
 359 <a href="http://www.awmn.net/">Athens Wireless Metropolitan Network</a>
 360 (see
 361 <a href="http://en.wikipedia.org/wiki/List_of_wireless_community_networks_by_region#Greece">wikipedia
 362 for a large list</a>) around the globe.  To give you an idea how it
 363 work, check out the nice overview of the Kiel Freifunk community which
 364 can be seen from their
 365 <a href="http://freifunk.in-kiel.de/ffmap/nodes.html">dynamically
 366 updated node graph and map</a>, where one can see how the mesh nodes
 367 automatically handle routing and recover from nodes disappearing.
 368 There is also a small community mesh network group in Oslo, Norway,
 369 and that is the main topic of this blog post.</p>
 370
 371 <p>I've wanted to check out mesh networks for a while now, and hoped
 372 to do it as part of my involvement with the <a
 373 href="http://www.nuug.no/">NUUG member organisation</a> community, and
 374 my recent involvement in
 375 <a href="https://wiki.debian.org/FreedomBox">the Freedombox project</a>
 376 finally lead me to give mesh networks some priority, as I suspect a
 377 Freedombox should use mesh networks to connect neighbours and family
 378 when possible, given that most communication between people are
 379 between those nearby (as shown for example by research on Facebook
 380 communication patterns).  It also allow people to communicate without
 381 any central hub to tap into for those that want to listen in on the
 382 private communication of citizens, which have become more and more
 383 important over the years.</p>
 384
 385 <p>So far I have only been able to find one group of people in Oslo
 386 working on community mesh networks, over at the hack space
 387 <a href="http://hackeriet.no/">Hackeriet</a> at Husmania.  They seem to
 388 have started with some Freifunk based effort using OLSR, called
 389 <a href="http://oslo.freifunk.net/index.php?title=Main_Page">the Oslo
 390 Freifunk project</a>, but that effort is now dead and the people
 391 behind it have moved on to a batman-adv based system called
 392 <a href="http://meshfx.org/trac">meshfx</a>.  Unfortunately the wiki
 393 site for the Oslo Freifunk project is no longer possible to update to
 394 reflect this fact, so the old project page can't be updated to point to
 395 the new project.  A while back, the people at Hackeriet invited people
 396 from the Freifunk community to Oslo to talk about mesh networks.  I
 397 came across this video where Hans Jørgen Lysglimt interview the
 398 speakers about this talk (from
 399 <a href="https://www.youtube.com/watch?v=N2Kd7CLkhSY">youtube</a>):</p>
 400
 401 <p><iframe width="420" height="315" src="https://www.youtube.com/embed/N2Kd7CLkhSY" frameborder="0" allowfullscreen></iframe></p>
 402
 403 <p>I mentioned OLSR and batman-adv, which are mesh routing protocols.
 404 There are heaps of different protocols, and I am still struggling to
 405 figure out which one would be "best" for some definitions of best, but
 406 given that the community mesh group in Oslo is so small, I believe it
 407 is best to hook up with the existing one instead of trying to create a
 408 completely different setup, and thus I have decided to focus on
 409 batman-adv for now.  It sure help me to  know that the very cool
 410 <a href="http://www.servalproject.org/">Serval project in Australia</a>
 411 is using batman-adv as their meshing technology when it create a self
 412 organizing and self healing telephony system for disaster areas and
 413 less industrialized communities.  Check out this cool video presenting
 414 that project (from
 415 <a href="https://www.youtube.com/watch?v=30qNfzJCQOA">youtube</a>):</p>
 416
 417 <p><iframe width="560" height="315" src="https://www.youtube.com/embed/30qNfzJCQOA" frameborder="0" allowfullscreen></iframe></p>
 418
 419 <p>According to the wikipedia page on
 420 <a href="http://en.wikipedia.org/wiki/Wireless_mesh_network">Wireless
 421 mesh network</a> there are around 70 competing schemes for routing
 422 packets across mesh networks, and OLSR, B.A.T.M.A.N. and
 423 B.A.T.M.A.N. advanced are protocols used by several free software
 424 based community mesh networks.</p>
 425
 426 <p>The batman-adv protocol is a bit special, as it provide layer 2
 427 (as in ethernet ) routing, allowing ipv4 and ipv6 to work on the same
 428 network.  One way to think about it is that it provide a mesh based
 429 vlan you can bridge to or handle like any other vlan connected to your
 430 computer.  The required drivers are already in the Linux kernel at
 431 least since Debian Wheezy, and it is fairly easy to set up.  A
 432 <a href="http://www.open-mesh.org/projects/batman-adv/wiki/Quick-start-guide">good
 433 introduction</a> is available from the Open Mesh project.  These are
 434 the key settings needed to join the Oslo meshfx network:</p>
 435
 436 <p><table>
 437 <tr><th>Setting</th><th>Value</th></tr>
 438 <tr><td>Protocol / kernel module</td><td>batman-adv</td></tr>
 439 <tr><td>ESSID</td><td>meshfx@hackeriet</td></tr>
 440 <td>Channel / Frequency</td><td>11 / 2462</td></tr>
 441 <td>Cell ID</td><td>02:BA:00:00:00:01</td>
 442 </table></p>
 443
 444 <p>The reason for setting ad-hoc wifi Cell ID is to work around bugs
 445 in firmware used in wifi card and wifi drivers.  (See a nice post from
 446 VillageTelco about
 447 "<a href="http://tiebing.blogspot.no/2009/12/ad-hoc-cell-splitting-re-post-original.html">Information
 448 about cell-id splitting, stuck beacons, and failed IBSS merges!</a>
 449 for details.)  When these settings are activated and you have some
 450 other mesh node nearby, your computer will be connected to the mesh
 451 network and can communicate with any mesh node that is connected to
 452 any of the nodes in your network of nodes. :)</p>
 453
 454 <p>My initial plan was to reuse my old Linksys WRT54GL as a mesh node,
 455 but that seem to be very hard, as I have not been able to locate a
 456 firmware supporting batman-adv.  If anyone know how to use that old
 457 wifi access point with batman-adv these days, please let me know.</p>
 458
 459 <p>If you find this project interesting and want to join, please join
 460 us on IRC, either channel
 461 <a href="irc://irc.freenode.net/#oslohackerspace">#oslohackerspace</a>
 462 or <a href="irc://irc.freenode.net/#nuug">#nuug</a> on
 463 irc.freenode.net.</p>
 464
 465 <p>While investigating mesh networks in Oslo, I came across an old
 466 research paper from the university of Stavanger and Telenor Research
 467 and Innovation called
 468 <a href="http://folk.uio.no/paalee/publications/netrel-egeland-iswcs-2008.pdf">The
 469 reliability of wireless backhaul mesh networks</a> and elsewhere
 470 learned that Telenor have been experimenting with mesh networks at
 471 Grünerløkka in Oslo.  So mesh networks are also interesting for
 472 commercial companies, even though Telenor discovered that it was hard
 473 to figure out a good business plan for mesh networking and as far as I
 474 know have closed down the experiment.  Perhaps Telenor or others would
 475 be interested in a cooperation?</p>
 476
 477 <p><strong>Update 2013-10-12</strong>: I was just
 478 <a href="http://lists.alioth.debian.org/pipermail/freedombox-discuss/2013-October/005900.html">told
 479 by the Serval project developers</a> that they no longer use
 480 batman-adv (but are compatible with it), but their own crypto based
 481 mesh system.</p>
 482 </div>
 483       <div class="tags">
 484
 485
 486         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox</a>, <a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug</a>.
 487
 488
 489       </div>
 490     </div>
 491     <div class="padding"></div>
 492
 493     <div class="entry">
 494       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Skolelinux___Debian_Edu_7_1_install_and_overview_video_from_Marcelo_Salvador.html">Skolelinux / Debian Edu 7.1 install and overview video from Marcelo Salvador</a></div>
 495       <div class="date"> 8th October 2013</div>
 496       <div class="body"><p>The other day I was pleased and surprised to discover that Marcelo
 497 Salvador had published a
 498 <a href="https://www.youtube.com/watch?v=w-GgpdqgLFc">video on
 499 Youtube</a> showing how to install the standalone Debian Edu /
 500 Skolelinux profile.  This is the profile intended for use at home or
 501 on laptops that should not be integrated into the provided network
 502 services (no central home directory, no Kerberos / LDAP directory etc,
 503 in other word a single user machine).  The result is 11 minutes long,
 504 and show some user applications (seem to be rather randomly picked).
 505 Missed a few of my favorites like celestia, planets and chromium
 506 showing the <a href="http://www.zygotebody.com/">Zygote Body 3D model
 507 of the human body</a>, but I guess he did not know about those or find
 508 other programs more interesting. :) And the video do not show the
 509 advantages I believe is one of the most valuable featuers in Debian
 510 Edu, its central school server making it possible to run hundreds of
 511 computers without hard drives by installing one central
 512 <a href="http://www.ltsp.org/">LTSP server</a>.</p>
 513
 514 <p>Anyway, check out the video, embedded below and linked to above:</p>
 515
 516 <iframe width="420" height="315" src="http://www.youtube.com/embed/w-GgpdqgLFc" frameborder="0" allowfullscreen></iframe>
 517
 518 <p>Are there other nice videos demonstrating Skolelinux?  Please let
 519 me know. :)</p>
 520 </div>
 521       <div class="tags">
 522
 523
 524         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
 525
 526
 527       </div>
 528     </div>
 529     <div class="padding"></div>
 530
 531     <div class="entry">
 532       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Finally__Debian_Edu_Wheezy_is_released_today_.html">Finally, Debian Edu Wheezy is released today!</a></div>
 533       <div class="date">29th September 2013</div>
 534       <div class="body"><p>A few hours ago, the announcement for the first stable release of
 535 Debian Edu Wheezy went out from the Debian publicity team.  The
 536 complete announcement text can be found at
 537 <a href="http://www.debian.org/News/2013/20130928">the Debian News
 538 section</a>, translated to several languages.  Please check it out.</p>
 539
 540 <p>There is one minor known problem that we will fix very soon.  One
 541 can not install a amd64 Thin Client Server using PXE, as the /var/
 542 partition is too small.  A workaround is to extend the partition (use
 543 lvresize + resize2fs in tty 2 while installing).</p>
 544 </div>
 545       <div class="tags">
 546
 547
 548         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 549
 550
 551       </div>
 552     </div>
 553     <div class="padding"></div>
 554
 555     <div class="entry">
 556       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Videos_about_the_Freedombox_project___for_inspiration_and_learning.html">Videos about the Freedombox project - for inspiration and learning</a></div>
 557       <div class="date">27th September 2013</div>
 558       <div class="body"><p>The <a href="http://www.freedomboxfoundation.org/">Freedombox
 559 project</a> have been going on for a while, and have presented the
 560 vision, ideas and solution several places.  Here is a little
 561 collection of videos of talks and presentation of the project.</p>
 562
 563 <ul>
 564
 565 <li><a href="http://www.youtube.com/watch?v=ukvUz5taxvA">FreedomBox -
 566 2,5 minute marketing film</a> (Youtube)</li>
 567
 568 <li><a href="http://www.youtube.com/watch?v=SzW25QTVWsE">Eben Moglen
 569 discusses the Freedombox on CBS news 2011</a> (Youtube)</li>
 570
 571 <li><a href="http://www.youtube.com/watch?v=Ae8SZbxfE0g">Eben Moglen -
 572 Freedom in the Cloud - Software Freedom, Privacy and and Security for
 573 Web 2.0 and Cloud computing at ISOC-NY Public Meeting 2010</a>
 574 (Youtube)</li>
 575
 576 <li><a href="http://www.youtube.com/watch?v=vNaIji_3xBE">Fosdem 2011
 577 Keynote by Eben Moglen presenting the Freedombox</a> (Youtube)</li>
 578
 579 <li><a href="http://www.youtube.com/watch?v=9bDDUyJSQ9s">Presentation of
 580 the Freedombox by James Vasile at Elevate in Gratz 2011</a> (Youtube)</li>
 581
 582 <li><a href="http://www.youtube.com/watch?v=zQTmnk27g9s"> Freedombox -
 583 Discovery, Identity, and Trust by Nick Daly at Freedombox Hackfest New
 584 York City in 2012</a> (Youtube)</li>
 585
 586 <li><a href="http://www.youtube.com/watch?v=tkbSB4Ba7Ck">Introduction
 587 to the Freedombox at Freedombox Hackfest New York City in 2012</a>
 588 (Youtube)</li>
 589
 590 <li><a href="http://www.youtube.com/watch?v=z-P2Jaeg0aQ">Freedom, Out
 591 of the Box! by Bdale Garbee at linux.conf.au Ballarat, 2012</a> (Youtube) </li>
 592
 593 <li><a href="https://archive.fosdem.org/2013/schedule/event/freedombox/">Freedombox
 594 1.0 by Eben Moglen and Bdale Garbee at Fosdem 2013</a> (FOSDEM) </li>
 595
 596 <li><a href="http://www.youtube.com/watch?v=e1LpYX2zVYg">What is the
 597 FreedomBox today by Bdale Garbee at Debconf13 in Vaumarcus
 598 2013</a> (Youtube)</li>
 599
 600 </ul>
 601
 602 <p>A larger list is available from
 603 <a href="https://wiki.debian.org/FreedomBox/TalksAndPresentations">the
 604 Freedombox Wiki</a>.</p>
 605
 606 <p>On other news, I am happy to report that Freedombox based on Debian
 607 Jessie is coming along quite well, and soon both Owncloud and using
 608 Tor should be available for testers of the Freedombox solution. :) In
 609 a few weeks I hope everything needed to test it is included in Debian.
 610 The withsqlite package is already in Debian, and the plinth package is
 611 pending in NEW.  The third and vital part of that puzzle is the
 612 metapackage/setup framework, which is still pending an upload.  Join
 613 us on <a href="irc://irc.debian.org:6667/%23freedombox">IRC
 614 (#freedombox on irc.debian.org)</a> and
 615 <a href="http://lists.alioth.debian.org/mailman/listinfo/freedombox-discuss">the
 616 mailing list</a> if you want to help make this vision come true.</p>
 617 </div>
 618       <div class="tags">
 619
 620
 621         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox</a>, <a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet</a>, <a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance</a>, <a href="http://people.skolelinux.org/pere/blog/tags/web">web</a>.
 622
 623
 624       </div>
 625     </div>
 626     <div class="padding"></div>
 627
 628     <div class="entry">
 629       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Third_and_probably_last_beta_release_of_Debian_Edu_Wheezy.html">Third and probably last beta release of Debian Edu Wheezy</a></div>
 630       <div class="date">16th September 2013</div>
 631       <div class="body"><p>The third wheezy based beta release of Debian Edu was wrapped up
 632 today.  This is the release announcement from Holger Levsen:</p>
 633
 634 <blockquote>
 635 <p>Hi,</p>
 636
 637 <p>it is my pleasure to announce the third beta release (beta 2 for
 638 short) of <a href="http://www.skolelinux.org/">Debian Edu /
 639 Skolelinux</a> based on Debian Wheezy!</p>
 640
 641 <p>Please test these images extensivly, if no new problems are found
 642 we plan to do this final Debian Edu Wheezy release this coming
 643 weekend.  We are not aware of any major problems or blockers in beta2,
 644 if you find something, please notify us immediately!</p>
 645
 646 <p>(More about the remaining steps for the Edu Wheezy release in
 647 another mail to the edu list tonight or tomorrow...)</p>
 648
 649 <p>Noteworthy changes and software updates for Debian Edu 7.1+edu0~b2
 650 compared to beta1:</p>
 651
 652 <ul>
 653
 654 <li>The KDE proxy setup has been adjusted to use the provided wpad.dat. This
 655 also gets Chromium to use this proxy.</li>
 656 <li>Install kdepim-groupware with KDE desktops to make sure korganizer
 657 understand ical/dav sources.</li>
 658 <li>Increased default maximum size of /var/spool/squid and /skole/backup on the
 659 main server.</li>
 660 <li>A source DVD image containing all source packages is now available as well.</li>
 661 <li>Updates for chromium (29.0.1547.57-1~deb7u1), imagemagick
 662 (6.7.7.10-5+deb7u2), php5 (5.4.4-14+deb7u4), libmodplug
 663 (0.8.8.4-3+deb7u1+git20130828), tiff (4.0.2-6+deb7u2), linux-image
 664 (3.2.0-4-486_3.2.46-1+deb7u1).</li>
 665
 666 </ul>
 667
 668 <p>Where to get it:</p>
 669
 670 <p>To download the multiarch netinstall CD release you can use</p>
 671
 672 <ul>
 673 <li><a href="ftp://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~b2-CD.iso">ftp://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~b2-CD.iso</a></li>
 674 <li><a href="http://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~b2-CD.iso">http://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~b2-CD.iso</a></li>
 675 <li>rsync -avzP ftp.skolelinux.org::skolelinux-cd/wheezy/debian-edu-7.1+edu0~b2-CD.iso .</li>
 676 </ul>
 677
 678 <p>The SHA1SUM of this image is:  3a1c89f4666df80eebcd46c5bf5fedb866f9472f</p>
 679
 680 <p>To download the multiarch USB stick ISO release you can use
 681 <ul>
 682 <li><a href="ftp://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~b2-USB.iso">ftp://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~b2-USB.iso</a></li>
 683 <li><a href="http://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~b2-USB.iso">http://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~b2-USB.iso</a></li>
 684 <li>rsync -avzP ftp.skolelinux.org::skolelinux-cd/wheezy/debian-edu-7.1+edu0~b2-USB.iso .</li>
 685 </ul>
 686
 687 <p>The SHA1SUM of this image is: 702d1718548f401c74bfa6df9f032cc3ee16597e</p>
 688
 689 <p>The Source DVD image has the filename
 690 debian-edu-7.1+edu0~b2-source-DVD.iso and the SHA1SUM
 691 089eed8b3f962db47aae1f6a9685e9bb2fa30ca5 and is available the same way
 692 as the other isos.</p>
 693
 694 <p>How to report bugs</p>
 695
 696 <p>For information how to report bugs please see
 697 <br><a href="http://wiki.debian.org/DebianEdu/HowTo/ReportBugs">http://wiki.debian.org/DebianEdu/HowTo/ReportBugs</a></p>
 698
 699
 700 <p>About Debian Edu and Skolelinux</p>
 701
 702 <p>Debian Edu, also known as Skolelinux, is a Linux distribution based
 703 on Debian providing an out-of-the box environment of a completely
 704 configured school network. Immediately after installation a school
 705 server running all services needed for a school network is set up just
 706 waiting for users and machines being added via GOsa², a comfortable
 707 Web-UI. A netbooting environment is prepared using PXE, so after
 708 initial installation of the main server from CD or USB stick all other
 709 machines can be installed via the network. The provided school server
 710 provides LDAP database and Kerberos authentication service,
 711 centralized home directories, DHCP server, web proxy and many other
 712 services.  The desktop contains more than 60 educational software
 713 packages and more are available from the Debian archive, and schools
 714 can choose between KDE, Gnome, LXDE and Xfce desktop environment.</p>
 715
 716 <p>This is the seventh test release based on Debian Wheezy. Basically
 717 this is an updated and slightly improved version compared to the
 718 Squeeze release.</p>
 719
 720 <p>Notes for upgrades from Alpha Prereleases</p>
 721
 722 <p>Alpha based installations should reinstall or downgrade the
 723 versions of gosa and libpam-mklocaluser to the ones used in this beta
 724 release. Both alpha and beta0 based installations should reinstall or
 725 deal with gosa.conf manually; there are two options: (1) Keep
 726 gosa.conf and edit this file as outlined on the mailing list. (2)
 727 Accept the new version of gosa.conf and replace both contained admin
 728 password placeholders with the password hashes found in the old one
 729 (backup copy!). In both cases all users need to change their password
 730 to make sure a password is set for CIFS access to their home
 731 directory.</p>
 732
 733
 734 <p>cheers,
 735 <br>        Holger</p>
 736 </blockquote>
 737 </div>
 738       <div class="tags">
 739
 740
 741         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 742
 743
 744       </div>
 745     </div>
 746     <div class="padding"></div>
 747
 748     <p style="text-align: right;"><a href="index.rss"><img src="http://people.skolelinux.org/pere/blog/xml.gif" alt="RSS feed" width="36" height="14" /></a></p>
 749     <div id="sidebar">
 750
 751
 752
 753 <h2>Archive</h2>
 754 <ul>
 755
 756 <li>2013
 757 <ul>
 758
 759 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 760
 761 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 762
 763 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
 764
 765 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 766
 767 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 768
 769 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
 770
 771 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 772
 773 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 774
 775 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 776
 777 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
 778
 779 </ul></li>
 780
 781 <li>2012
 782 <ul>
 783
 784 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 785
 786 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 787
 788 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 789
 790 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 791
 792 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 793
 794 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 795
 796 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 797
 798 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 799
 800 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 801
 802 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 803
 804 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 805
 806 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 807
 808 </ul></li>
 809
 810 <li>2011
 811 <ul>
 812
 813 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 814
 815 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 816
 817 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 818
 819 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 820
 821 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 822
 823 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 824
 825 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 826
 827 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 828
 829 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 830
 831 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 832
 833 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 834
 835 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 836
 837 </ul></li>
 838
 839 <li>2010
 840 <ul>
 841
 842 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 843
 844 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 845
 846 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 847
 848 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 849
 850 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 851
 852 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 853
 854 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 855
 856 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 857
 858 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 859
 860 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 861
 862 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 863
 864 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 865
 866 </ul></li>
 867
 868 <li>2009
 869 <ul>
 870
 871 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 872
 873 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 874
 875 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 876
 877 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 878
 879 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 880
 881 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 882
 883 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 884
 885 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 886
 887 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 888
 889 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 890
 891 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 892
 893 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 894
 895 </ul></li>
 896
 897 <li>2008
 898 <ul>
 899
 900 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 901
 902 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 903
 904 </ul></li>
 905
 906 </ul>
 907
 908
 909
 910 <h2>Tags</h2>
 911 <ul>
 912
 913  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (13)</a></li>
 914
 915  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 916
 917  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 918
 919  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
 920
 921  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (7)</a></li>
 922
 923  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (12)</a></li>
 924
 925  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
 926
 927  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (88)</a></li>
 928
 929  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (142)</a></li>
 930
 931  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (10)</a></li>
 932
 933  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (10)</a></li>
 934
 935  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
 936
 937  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (223)</a></li>
 938
 939  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (21)</a></li>
 940
 941  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (12)</a></li>
 942
 943  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (12)</a></li>
 944
 945  <li><a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (5)</a></li>
 946
 947  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (11)</a></li>
 948
 949  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (37)</a></li>
 950
 951  <li><a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (7)</a></li>
 952
 953  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (18)</a></li>
 954
 955  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (8)</a></li>
 956
 957  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (6)</a></li>
 958
 959  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 960
 961  <li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (3)</a></li>
 962
 963  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (25)</a></li>
 964
 965  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (236)</a></li>
 966
 967  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (156)</a></li>
 968
 969  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (8)</a></li>
 970
 971  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 972
 973  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (45)</a></li>
 974
 975  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (67)</a></li>
 976
 977  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (1)</a></li>
 978
 979  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 980
 981  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (2)</a></li>
 982
 983  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (8)</a></li>
 984
 985  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 986
 987  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (4)</a></li>
 988
 989  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
 990
 991  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (32)</a></li>
 992
 993  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
 994
 995  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (4)</a></li>
 996
 997  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (43)</a></li>
 998
 999  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (3)</a></li>
1000
1001  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (9)</a></li>
1002
1003  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (20)</a></li>
1004
1005  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (1)</a></li>
1006
1007  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (8)</a></li>
1008
1009  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (39)</a></li>
1010
1011  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
1012
1013  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (28)</a></li>
1014
1015 </ul>
1016
1017
1018     </div>
1019     <p style="text-align: right">
1020  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
1021 </p>
1022
1023   </body>
1024 </html>